An experimental study on the effects of matrix cracking to the stiffness of glass/epoxy cross plied laminates

被引：10

作者：

Lasn, Kaspar ^{[1
,2
]}

Echtermeyer, Andreas T. ^{[2
]}

Klauson, Aleksander ^{[1
]}

Chati, Farid ^{[3
]}

Decultot, Dominique ^{[3
]}

机构：

[1] Tallinn Univ Technol, Dept Mech, EE-19086 Tallinn, Estonia

[2] Norwegian Univ Sci & Technol, Dept Engn Design & Mat, Composites & Polymers, N-7491 Trondheim, Norway

[3] Univ Havre, Lab Ondes & Milieux Complexes, UMR CNRS 6294, F-76085 Le Havre, France

来源：

COMPOSITES PART B-ENGINEERING | 2015年 / 80卷

关键词：

Fatigue; Transverse cracking; Non-destructive testing; Ultrasonics; LAMB WAVE EVALUATION; COMPOSITE-MATERIALS; ELASTIC PROPERTIES; TRANSVERSE CRACKS; NATURAL FREQUENCIES; EXPERIMENT DESIGN; DAMAGE DETECTION; FATIGUE DAMAGE; PLATE; PLY;

D O I：

10.1016/j.compositesb.2015.06.005

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Three independent measurement techniques are applied to characterize glass fiber laminates. The effects of distributed fatigue damage to the stiffness related behavior of cross plied laminates are quantified. Tensile and flexural stiffness reduction is obtained from quasi-static testing. Vibration testing shows the degradation of flexural and in-plane shear stiffnesses. The reduction of the phase velocity of symmetric So mode is observed from the experimental dispersion curves of Lamb waves. However, the mutual agreement of these results is less satisfactory than was earlier seen for virgin laminates. The phenomena causing the discrepancies are proposed and discussed. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：260 / 268

页数：9

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